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Day Value Day Value Day Value 1 49.8 11 49.5 21 58.8 2 48.4 12 50.5 22 51.3 34 49.8 13 48.9 23 50.6 50.8 14 49.7 24 48.8 сл 5 49.6 15 48.9 25 52.6 6 50.2 16 48.8 26 54.2 7 51.7 17 48.6 27 49.3 8 50.5 18 48.1 28 47.9 9 47.7 19 53.8 29 51.3 10 50.3 20 49.6 30 49.3

Day Value Day Value Day Value 1 49.8 11 49.5 21 58.8 2 48.4 12 50.5 22 51.3 34 49.8 13 48.9 23 50.6 50.8 14 49.7 24 48.8 сл 5 49.6 15 48.9 25 52.6 6 50.2 16 48.8 26 54.2 7 51.7 17 48.6 27 49.3 8 50.5 18 48.1 28 47.9 9 47.7 19 53.8 29 51.3 10 50.3 20 49.6 30 49.3

World of Chemistry, 3rd edition
World of Chemistry, 3rd edition
3rd Edition
ISBN:9781133109655
Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste
Chapter10: Energy
Section: Chapter Questions
Problem 5A
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The following data represent measurements made on a process for 30 days. One measurement was made each day. Assuming that 30 measurements are enough that x --> u and s --> o, find the mean of the values, the standard deviation, and the upper and lower control limits. Plot the data points along with the statistical quantities on a chart, and determine whether the process was always in statistical control.

 

Mean = 

Standard deviation = 

Upper control limit = 

Lower control limit = 

The process went out of control on Day

Day Value Day Value Day Value 1 49.8 11 49.5 21 58.8 2 48.4 12 50.5 22 51.3 34 49.8 13 48.9 23 50.6 50.8 14 49.7 24 48.8 сл 5 49.6 15 48.9 25 52.6 6 50.2 16 48.8 26 54.2 7 51.7 17 48.6 27 49.3 8 50.5 18 48.1 28 47.9 9 47.7 19 53.8 29 51.3 10 50.3 20 49.6 30 49.3
Transcribed Image Text:Day Value Day Value Day Value 1 49.8 11 49.5 21 58.8 2 48.4 12 50.5 22 51.3 34 49.8 13 48.9 23 50.6 50.8 14 49.7 24 48.8 сл 5 49.6 15 48.9 25 52.6 6 50.2 16 48.8 26 54.2 7 51.7 17 48.6 27 49.3 8 50.5 18 48.1 28 47.9 9 47.7 19 53.8 29 51.3 10 50.3 20 49.6 30 49.3
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